Mowi's Krabbestig site, where more than 140,000 salmon died in a three-week period in November.

More than 140,000 fish die at Mowi farm in Norway

Acute and chronic gill problems blamed for mortality

Published

More than 140,000 farmed salmon died at Mowi Norway’s “Krabbestig” site in the period from November 1 to 21, 2025, documents seen by Fish Farming Expert’s Norwegian sister site, Kyst.no, show.

The mortality is documented in an inspection report from the Norwegian Food Safety Authority (Mattilsynet), carried out after the company reported increased mortality related to gill problems.

The fish farm is in Kinn municipality, in Vestland county.

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